Henry Kenneth Bulmer (January 14, 1921 to December 16, 2005), a prolific British author who wrote using numerous pen names. Alan Burt Akers was the pen name he used when he created the Dray Prescot series. The series was written as eleven cycles.
This book, Captive Scorpio, is the seventeenth title of the series from the fourth cycle the Vallian cycle.

The Fall of Vondium

Dray Prescot, Earthman of Kregen, that wonder world circling the twin suns of Antares, had risen high in the empire
of Vallia, but luck could not always sustain him.
When, at last, all the forces opposed to his lands, his princess, his emperor, and to him personally, converged,
it was to produce the darkest hour of his long career. For treason struck at the court, while rebel armies marched
from the backlands, the war fleets of enemy nations were aloft, and the uncanny wizardry of a master scientist
launched a spell of doom for all Prescot held dear.
With his back to the wall, Dray Prescot faced that time of peril with unflinching will...until the cruelest blow of
all was struck; his warrior-daughter Dayra rode in the vanguard of his foes!

Condition:

Not an ex library. Not a remainder. No stickers, no book stamp.
No reading creases. Covers bright and colorful.
The cover and pages are intact and in great condition.